Finger wag, point left, nod, point, point, four fingers, ok?
Sometimes hand signals are hard work. Sometimes you just can't get your point across in a few signals!
Underwater slates are designed to let you and your dive buddy write messages underwater, so that there's no future confusion! The Scubapro Underwater Slate is a popular choice, and even glows in the dark! Comes complete with a pencil to get your writing underway.